Question

A Physics 4C student team is doing a thermal experiment where they have two rods of different materials. One rod is made of cooper and the other brass. They are joined together. The brass section has a length of 0.355 m. The copper section a length of 0.750 m. Each segment has cross-sectional area of 0.00475 m^2. Boiling water is in contact with the free end of the brass rod while the free end of the copper is in contact with an ice-water mixture. This experiment is being conducted in standard atmospheric pressure. The sides of the rods are insulated to prevent heat loss to the surroundings.

(a) Where the copper and brass are joined, what is the temperature?

(b) What is the mass of ice that is melted in 6.00 min by the conducted heat of the composite rod?

Lf = 3.334 x 10^5 J/kg

k = 109 W/(m •K) for brass k = 385.0 W/(m •K) for copper

Answer 1

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